Calum Gillhespy BSc (Hons) MRICS Agricultural and Property Dispute Resolution in Richmond, North Yorkshire

Calum Gillhespy is a director at GSC Grays and leads the firm’s Planning and Development team, delivering strategic advice on urban extensions, strategic sites, and mixed-use projects across Yorkshire, Durham, and Northumberland.
His expert consultancy spans a broad spectrum, supporting colleagues and clients throughout the region on both development and technical land matters.
Calum is an experienced dispute resolver with an active caseload focused on property-related arbitrations, mediations, and expert witness reports for development land value. He takes pride in helping clients overcome technical or difficult challenges, offering targeted support for sustainable land management, public and private environmental funding, and opportunities to maximise the potential of rural and development sites.
How Calum can help
Calum specialises in arbitration, expert determination and mediation. He can help in the following areas:
- Arbitration — Option/promotion agreements
- Arbitration — Development site sale price
- Arbitration — Landlord & Tenant (AHA 1986 & ATA 1995)
- Arbitration — Clawback and restrictive covenants
- Arbitration — Compulsory purchase valuation
- Arbitration — Renewable energy
- Expert Determination — Option/promotion agreements
- Expert Determination — Development and rural property valuations
- Expert Determination — Renewable energy
- Mediation — All rural property and business disputes
Rural Dispute Resolution in Richmond, North Yorkshire
Calum is based in Richmond, North Yorkshire and covers Arbitrations & mediation: national, Expert: Yorkshire, North East and North West.
Accreditations and Memberships
- BSc (Hons) Rural Enterprise and Land Management
- MRICS (Member of the Royal Institution of Chartered Surveyors)
- RICS Accredited Valuer
- RICS Accredited Expert Witness
- RICS Panel of Arbitrators
- RICS Trained Mediator
- BTEC Level 7 Advanced Professional Award in Expert Witness Evidence
- Diploma in Arbitration
